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Date: Fri, 2 Dec 2016 18:16:32 +0000
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Message-ID: <20161202181631.GH15373@work-vm>
References: <CAGZKiBoidWDhW6Pp-iQVNWJEkAJjpapAoEJmxA+b7_yf4y58Cw@mail.gmail.com>
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Subject: Re: [Qemu-devel] Unable to add ram object with same ID after
 addition, migration and removal at the target
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To: Bharata B Rao <bharata.rao@gmail.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, Igor Mammedov <imammedo@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, mdroth@linux.vnet.ibm.com

* Bharata B Rao (bharata.rao@gmail.com) wrote:
> Hi,
> 
> - Add ram object and dimm device at the source
> 
> (qemu) object_add memory-backend-ram,id=ram0,size=128M
> (qemu) device_add pc-dimm,id=dimm0,memdev=ram0
> 
> - Migrate the VM and remove the dimm device and ram object at the target
> 
> (qemu) device_del dimm0
> (qemu) object_del ram0
> 
> - Adding the ram object with same id now at the target fails like this:
> 
> (qemu) info memdev
> 
> (qemu) object_add memory-backend-ram,id=ram0,size=128M
> Duplicate ID 'ram0' for object
> 
> Same behaviour is seen on x86 and Power. The problem isn't seen if
> migration isn't involved (add, remove, add at the source itself).

Is this the same as the one Michael Roth posted a fix for a few days
back; 'monitor: fix object_del for command-line-created objects'

https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg05479.html

Dave

> Regards,
> Bharata.
> -- 
> http://raobharata.wordpress.com/
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK